Question I need to figure out what cooler I should get for AMD Ryzen 7 5800X3D ?

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TheLeftybar

TheLeftybar

May 31, 2025
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So I'm on vacation and I went into a McKay's used bookstore which has way more than books. There was a plethora of tech like old & retro gaming consoles & games. In with that, there was a large selection of used PC components, enough to build 3 gaming systems. In there, I managed to find i the back and get a Ryzen 7 5800X3D CPU still in the box with factory seal still intact for $240. One of my best finds for a CPU that usually sells for around $350 to $450 on Amazon & Ebay. So, now that I've got this CPU in my possession, I'm struggling to figure out a new CPU cooler for this gaming power house.

I'm not sure what CPU cooler I have currently but its a Thermalright brand and is a low profile air cooler. This cooler struggles to keep my overclocked 4.35GHz Ryzen 5 5500 CPU from burning up when putting it through a benchmark & doing anything CPU intensive. Now from what I remember when pushing the Ryzen 5 in a benchmark, it consumes about 80w; the 5800X3D has a TDP of 105W, so the CPU cooler I have aint gonna work.

I have been looking at the Thermalright Peerless Assassin 120 SE as a possible option that could work & fit inside my Vetroo M03 M-ATX case, but i wanted to come here and ask for yalls opinions on what I should buy before I pull the trigger. I would prefer an air cooler tbh but I will consider a water cooler if thats recommended.

What CPU cooler should I buy?
 
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Lutfij said:
I have been looking at the Thermalright Peerless Assassin 120 SE

Peerless Assassin 120 SE – Thermalright

www.thermalright.com www.thermalright.com
155mm with the fans in their normal positions and your rams don't force the fans to be mounted higher
+
my Vetroo M03 M-ATX case
vetroo.com

Vetroo M03 M-ATX Gaming PC Case, 4 colors

vetroo.com vetroo.com
166mm clearance in the case

You have 11mm to spare.

Moved thread from CPUs section to Cooling section.
Click to expand...
I didnt realize there was a "Cooling" forum so thank you for moving it. Also thank you for the added info on space for the PA-120SE cooler & my case to which I have teamgroup t-create 10L 32GB kit of ram. Do you think the PA-120SE is good enough for the 5800X3D or would you recommend something else.
 
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TheLeftybar said:
I didnt realize there was a "Cooling" forum so thank you for moving it. Also thank you for the added info on space for the PA-120SE cooler & my case to which I have teamgroup t-create 10L 32GB kit of ram. Do you think the PA-120SE is good enough for the 5800X3D or would you recommend something else.
Click to expand...
Twin tower , dual fan with 6 pipes should be fine but you also have to make sure case cooling is up to par with good flow as that can limit air cooler quite a bit.
 
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CountMike said:
Twin tower , dual fan with 6 pipes should be fine but you also have to make sure case cooling is up to par with good flow as that can limit air cooler quite a bit.
Click to expand...
I got 3 front intake & 3 top & rear exhaust fans. I could 3D print shrouds to improve direction of air flow but it's great. I could go with the Thermalright PA-120D, PA-120 V3, and the Thermalright Royal Predator 130.
 
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TheLeftybar said:
So I'm on vacation and I went into a McKay's used bookstore which has way more than books. There was a plethora of tech like old & retro gaming consoles & games. In with that, there was a large selection of used PC components, enough to build 3 gaming systems. In there, I managed to find i the back and get a Ryzen 7 5800X3D CPU still in the box with factory seal still intact for $240. One of my best finds for a CPU that usually sells for around $350 to $450 on Amazon & Ebay. So, now that I've got this CPU in my possession, I'm struggling to figure out a new CPU cooler for this gaming power house.

I'm not sure what CPU cooler I have currently but its a Thermalright brand and is a low profile air cooler. This cooler struggles to keep my overclocked 4.35GHz Ryzen 5 5500 CPU from burning up when putting it through a benchmark & doing anything CPU intensive. Now from what I remember when pushing the Ryzen 5 in a benchmark, it consumes about 80w; the 5800X3D has a TDP of 105W, so the CPU cooler I have aint gonna work.

I have been looking at the Thermalright Peerless Assassin 120 SE as a possible option that could work & fit inside my Vetroo M03 M-ATX case, but i wanted to come here and ask for yalls opinions on what I should buy before I pull the trigger. I would prefer an air cooler tbh but I will consider a water cooler if thats recommended.

What CPU cooler should I buy?
Click to expand...


From personal experience I would use a aio 240 in the top of the case. These chips run extremely hot the 5700x3d runs cooler for air cooling the 5800x3d kind of goes overboard that and pushes the silicone hard. and because of the nature of the v cache being on top of half the cores it acts as a insulating barrier .

DeepCool LS520 is what id recommend.
 
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Im
beyondlogic said:
From personal experience I would use a aio 240 in the top of the case. These chips run extremely hot the 5700x3d runs cooler for air cooling the 5800x3d kind of goes overboard that and pushes the silicone hard. and because of the nature of the v cache being on top of half the cores it acts as a insulating barrier .

DeepCool LS520 is what id recommend.
Click to expand...
I'm in the US, I'm not able to purchase any DeepCool products unless on the used market. Also, how long is that AIO gonna last, and what's gonna happen to the CPU if it does fail? That's a game that I don't want to play.
 
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TheLeftybar said:
Im

I'm in the US, I'm not able to purchase any DeepCool products unless on the used market.
Click to expand...
That's the main reason why I'm asking here. Even though an AIO would do a better job in cooling, how long is it going to last. Also, if it does fail, what's gonna happen to the CPU. An air cooler is a lot simpler and if a fan fails, it's still going to be able to be cooled.

I could go with something bigger like the Thermalright RP-130 or JUISHARK JF13K if the heat is a major concern like what beyondlogoc said.
 
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TheLeftybar said:
Im

I'm in the US, I'm not able to purchase any DeepCool products unless on the used market. Also, how long is that AIO gonna last, and what's gonna happen to the CPU if it does fail? That's a game that I don't want to play.
Click to expand...


Most aios last year's if you look after them properly never had one break down yet or leak.

Nothing will happen to CPU there designed to shut off when they overheat before any damage does occur.

You can get a air cooler but I wouldn't use anything under 6 heatpipes and even then it may not be able to handle it.
 
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TheLeftybar said:
That's the main reason why I'm asking here. Even though an AIO would do a better job in cooling, how long is it going to last. Also, if it does fail, what's gonna happen to the CPU. An air cooler is a lot simpler and if a fan fails, it's still going to be able to be cooled.

I could go with something bigger like the Thermalright RP-130 or JUISHARK JF13K if the heat is a major concern like what beyondlogoc said.
Click to expand...


The issue with tower heatsinks are as follows.

You need decent airflow if you have a very power hungry card next to it the heat giving of the tower can heat up the GPU.

also can act like a radiator if you can't kick out the heat fast enough.
 
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An AIO cooler is really an Air cooler.
The difference is where the radiator is located.
The cooling capability is related to the volume of the cooling fins. That will be comparable between a 240 aio and a twin tower air cooler.

Any cooler, air or aio needs good airflow to direct the cpu heat out of the case asap.

Looks count, and some prefer the looks of an aio.

With an aio, the pump is a mechanical device and will fail in time.
Air will permeate through the flexible tubes and in time will reduce the effectiveness and the unit will need to be replaced.

On either, the fan may fail but is easily replaced.

As to noise, it comes from fans running at high rpm's.
A 140mm fan will produce more airflow at lower RPM than a 120mm fan.
On a noctua air cooler, the max rpm will be 1500 RPM which is not noisy at all.
 
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beyondlogic said:
The issue with tower heatsinks are as follows.

You need decent airflow if you have a very power hungry card next to it the heat giving of the tower can heat up the GPU.

also can act like a radiator if you can't kick out the heat fast enough.
Click to expand...
I got 3 intake & 3 exhaust fans in my case, and I currently have a Powercolor Fighter RX 6750XT which does consume a good amount of power but ya know.

If i utilize my 3D printer & create some ducting & what not in PETG, I tell ya what, I wont have any form of air flow & heat issues.

Also like you said, while the 5800X3D is a monster and does produce heat, were talking about one of the best gaming cpu's with a 105W TDP. This thing aint no I9-14900k or I9-13900K. Hell, geofelt has an I9-14900K and he has a Noctua Air Cooler for that CPU (which seems crazy honestly how are you cooling that monster but hey he might have a trick up his sleeve.)

Speaking of I9's & hardware, what is your CPU & cooler, and what temps are you getting in a Cinebench or 3Dmark Benchmark.
 
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geofelt said:
An AIO cooler is really an Air cooler.
The difference is where the radiator is located.
The cooling capability is related to the volume of the cooling fins. That will be comparable between a 240 aio and a twin tower air cooler.

Any cooler, air or aio needs good airflow to direct the cpu heat out of the case asap.

Looks count, and some prefer the looks of an aio.

With an aio, the pump is a mechanical device and will fail in time.
Air will permeate through the flexible tubes and in time will reduce the effectiveness and the unit will need to be replaced.

On either, the fan may fail but is easily replaced.

As to noise, it comes from fans running at high rpm's.
A 140mm fan will produce more airflow at lower RPM than a 120mm fan.
On a noctua air cooler, the max rpm will be 1500 RPM which is not noisy at all.
Click to expand...
Actual fan design does matter too. While a 140mm fan can get more than a 120mm, the shape of the fan blades can have an effect on efficiency, noise, & air flow.

Also I see your setup has a 14900K and a Noctua air cooler. Ik these CPU's arnt similar but what temps are you getting on your system in a Cinebench or 3Dmark benchmark?
 
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TheLeftybar said:
I got 3 intake & 3 exhaust fans in my case, and I currently have a Powercolor Fighter RX 6750XT which does consume a good amount of power but ya know.

If i utilize my 3D printer & create some ducting & what not in PETG, I tell ya what, I wont have any form of air flow & heat issues.

Also like you said, while the 5800X3D is a monster and does produce heat, were talking about one of the best gaming cpu's with a 105W TDP. This thing aint no I9-14900k or I9-13900K. Hell, geofelt has an I9-14900K and he has a Noctua Air Cooler for that CPU (which seems crazy honestly how are you cooling that monster but hey he might have a trick up his sleeve.)

Speaking of I9's & hardware, what is your CPU & cooler, and what temps are you getting in a Cinebench or 3Dmark Benchmark.
Click to expand...

if you want to 3d print ducts thats perfectly fine.

the 5800x3d produces alot of heat the issue is the cache stacked on it acts as a insulator. its the reason these chips cant oc as youd fry the cache.
 
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TheLeftybar said:
Actual fan design does matter too. While a 140mm fan can get more than a 120mm, the shape of the fan blades can have an effect on efficiency, noise, & air flow.

Also I see your setup has a 14900K and a Noctua air cooler. Ik these CPU's arnt similar but what temps are you getting on your system in a Cinebench or 3Dmark benchmark?
Click to expand...
Out of curiosity, I ran cinebench and got a score of 32264.
During the process I had HWmonitor open and observed the temperatures.
Half of the P cores got to 100c. which indicates throttling. The other 4 P cores never throttled. The duration of throttling was fleeting, the processor did exactly what it should do.
My cooler is the Noctua NH-D15S. It is in a cm HAF XB EVO case with two Noctua 140mm front intakes and a 120mm noctua rear exhaust.
The cpu fan ran at 1500 rpm and the case fans ran at 800 RPM so the whole thing was essentially silent.
 
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Ok so I've really been looking more & more, I think I'm going with the Thermalright Phantom Spirit 120 SE. For some reason looking at videos of the 3 versions, the SE did better than the normal & EVO version of the Phantom Spirit 120. It provides great noise & great performance all in a great price. But the other two have better ram compatibility so I will consider the Evo an option as well. I will pair the cooler of choice with Thermalright TF9 thermalpaste for the best thermal transfer I can get.

However while looking for the thermalpaste to choose, the ID-COOLING A720, not the A620, caught my eye as the I9-14900K they were using in Cinebench R23 in tom's hardware testing kept the CPU very cool. However, there are no real tests or comparisons that have been done on the A720. So, I'm giving it a day for yall to pick the final decider.

Thermalright Phantom Spirit 120 SE for $35
OR
Thermalright Phantom Spirit 120 Evo for $52
OR
ID-COOLING FROZN A720 for $70
 
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